Oliver,

> Hi,
> 
> could you post the decoded version? Are you sure your driver's tables
> match the second configuration's interface?
> 
>       Regards
>               Oliver
> 

A quick cut-n-paste from Greg's usbview yields the following.  And my driver
does match the second config.  Actually, my driver currently matches any
USB device plugged in.

-Mike

=========================== usbview ===============================


Fingerprint Sensor
Speed: 12Mb/s (full)
USB Version:  1.10
Device Class: ff(vend.)
Device Subclass: ff
Device Protocol: ff
Maximum Default Endpoint Size: 8
Number of Configurations: 2
Vendor Id: 08ff
Product Id: 3406
Revision Number:  5.21

Config Number: 1
        Number of Interfaces: 2
        Attributes: a0
        MaxPower Needed: 100mA

        Interface Number: 0
                Name: usb-remote
                Alternate Number: 0
                Class: ff(vend.) 
                Sub Class: 0
                Protocol: 0
                Number of Endpoints: 2

                        Endpoint Address: 81
                        Direction: in
                        Attribute: 2
                        Type: Bulk
                        Max Packet Size: 32
                        Interval: 0ms

                        Endpoint Address: 02
                        Direction: out
                        Attribute: 2
                        Type: Bulk
                        Max Packet Size: 8
                        Interval: 0ms

        Interface Number: 1
                Name: usb-remote
                Alternate Number: 0
                Class: 03(HID  ) 
                Sub Class: 1
                Protocol: 2
                Number of Endpoints: 1

                        Endpoint Address: 83
                        Direction: in
                        Attribute: 3
                        Type: Int.
                        Max Packet Size: 3
                        Interval: 10ms

        Interface Number: 1
                Name: usb-remote
                Alternate Number: 1
                Class: 03(HID  ) 
                Sub Class: 1
                Protocol: 2
                Number of Endpoints: 1

                        Endpoint Address: 83
                        Direction: in
                        Attribute: 3
                        Type: Int.
                        Max Packet Size: 8
                        Interval: 10ms

Config Number: 2
        Number of Interfaces: 1
        Attributes: a0
        MaxPower Needed: 100mA

        Interface Number: 0
                Name: 
                Alternate Number: 0
                Class: ff(vend.) 
                Sub Class: 0
                Protocol: 0
                Number of Endpoints: 2

                        Endpoint Address: 81
                        Direction: in
                        Attribute: 2
                        Type: Bulk
                        Max Packet Size: 32
                        Interval: 0ms

                        Endpoint Address: 02
                        Direction: out
                        Attribute: 2
                        Type: Bulk
                        Max Packet Size: 8
                        Interval: 0ms



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